HEAVY VEHICLE ROUTE ASSESSMENT - DULGUIGAN ROAD

TUMBULGUM, NSW

PREPARED BY ROADNET PTY LTD For Tweed Shire Council

11/03/2019

Heavy Vehicle Route Assessment - Dulguigan Road Tumbulgum, NSW Prepared by RoadNet Pty Ltd For Tweed Shire Council

Job Number: 18029G Page 2 of 18 Date 11/03/2019 Document Status: Draft

Document Control Sheet

Prepared by:

RoadNet Pty Ltd

8 Sixth Avenue

PALM BEACH QLD 4221

07 5525 7377

gold.coast@roadnet.net.au

Issue No 1 2 3

Document Status Draft Draft Draft

Date 23/12/2018 01/03/2019 11/03/2019

Issued To

Alana Brooks

Road Safety Officer

Tweed Shire Council

Alana Brooks

Road Safety Officer

Tweed Shire Council

Alana Brooks

Road Safety Officer

Tweed Shire Council

Prepared By

Craig Frazer

Senior Civil Engineer

CPEng

Craig Frazer

Senior Civil Engineer

CPEng

Craig Frazer

Senior Civil Engineer

CPEng

Reviewed By

Troy Ingram

Senior Civil Engineer

CPEng

Troy Ingram

Senior Civil Engineer

CPEng

Heavy Vehicle Route Assessment - Dulguigan Road Tumbulgum, NSW Prepared by RoadNet Pty Ltd For Tweed Shire Council

Job Number: 18029G Page 3 of 18 Date 11/03/2019 Document Status: Draft

CONTENTS

1. INTRODUCTION ........................................................................................................................ 4

2. PURPOSE .................................................................................................................................. 4

3. DESIGN VEHICLE ..................................................................................................................... 5

4. METHODOLOGY ....................................................................................................................... 5

5. ROAD CLASSIFICATION ........................................................................................................... 6

6. SITE INSPECTION ..................................................................................................................... 6

7. HAULAGE ROUTE ..................................................................................................................... 7

8. RISK ASSESSMENT ................................................................................................................ 13

9. RECOMMENDATIONS ............................................................................................................ 13

Appendix A – Vehicle Swept Path (19m Semi-trailer)………….……….………………………..………….15

Appendix B – Vehicle Swept Path (26m B-double)…………….……….………………………..………….16

Appendix C – Road Classification ……………………………….……….………………………..………….17

Appendix D - Risk Assessment ………………………………………………………………………………..18

Heavy Vehicle Route Assessment - Dulguigan Road Tumbulgum, NSW Prepared by RoadNet Pty Ltd For Tweed Shire Council

Job Number: 18029G Page 4 of 18 Date 11/03/2019 Document Status: Draft

1. INTRODUCTION

RoadNet Pty Ltd (RoadNet) has been commissioned by Tweed Shire Council (TSC) to undertake a Heavy Vehicle Route Assessment of the roads between the Dulguigan Quarry and the Tweed Valley Way in Tumbulgum (refer Figure 1.1 below).

Figure 1.1 - Heavy Vehicle Route

2. PURPOSE

The purpose of this report is to summarise the outcomes of:

(i) site inspection(s); (ii) road classification review using the National Heavy Vehicle Regulator (NHVR) Guidelines to

determine a suitable level of access under the existing road conditions; (iii) vehicle swept path analysis at various locations and identify any potential geometric constraints; (iv) risk assessment;

to identify any risks associated with heavy vehicles using this route and provide recommendations to mitigate any identified risks.

North

Dulguigan

Quarry

Heavy Vehicle Route

Legend

Heavy Vehicle Route Assessment - Dulguigan Road Tumbulgum, NSW Prepared by RoadNet Pty Ltd For Tweed Shire Council

Job Number: 18029G Page 5 of 18 Date 11/03/2019 Document Status: Draft

3. DESIGN VEHICLE

The design vehicle used for the swept path analysis for general access (Level 1) is a 19m semi-trailer. These vehicles can operate on all general access roads without a permit.

A vehicle swept path analysis was also undertaken to identify constraints for Level 2 using the template for a 26m B-double (Austroads, Design Vehicles and Turning Template Guide).

Heavy vehicles up to 20m Performance Based Standards (PBS) are able to operate on the route being assessed in this report. There are a high number of eligible vehicle combinations with various axle combinations that fall into this 20m PBS category. Not having the specific details of the 20m PBS vehicles using this route the vehicle swept path analysis has been based on a 19m semi-trailer.

Mark Foran (Roads and Maritime Services: Heavy Vehicle Access Coordinator - Freight Branch) confirmed the 19m semi-trailer template will service as a guide and be a worst case scenario to establish safety risk.

The vehicle swept path analysis, which assesses the path of different parts of a vehicle when undertaking a turning manoeuvre, has been used at specific locations along the route. AutoTURN vehicle swept paths are shown on aerial photos in Appendix A - 19m Semi-trailer and Appendix B - 26m B-Double.

4. METHODOLOGY

The heavy vehicle route assessment process included the following tasks:

Complete National Heavy Vehicle Regulator (NHVR) road classification form and determine the appropriate level of access under the existing road conditions;

Review heavy vehicle traffic data;

Attend on-site commencement meeting with Tweed Shire Council representative;

Site inspection with associated photos, video recording and measuring of road seal widths, etc;

Identify site constraints;

Undertake vehicle swept path analysis at specific locations along the route;

Prepare draft Heavy Vehicle Route Assessment report and submit to Tweed Shire Council;

Meet with Tweed Shire Council representative to discuss the format and content in the draft report;

Undertake on-site observations to assess traffic behaviour and travel paths being utilised;

Undertake a risk assessment reflecting risk levels associated with heavy vehicles;

Finalise the Heavy Vehicle Route Assessment Report and submit to Council.

Heavy Vehicle Route Assessment - Dulguigan Road Tumbulgum, NSW Prepared by RoadNet Pty Ltd For Tweed Shire Council

Job Number: 18029G Page 6 of 18 Date 11/03/2019 Document Status: Draft

5. ROAD CLASSIFICATION

The “Appendix D - Sample Form for Road Classification” form (refer Appendix C) was completed based on site observations and lane and road shoulder width measurements taken at various locations on Dulguigan Road and the bridge on Terranora Road.

Road Formation Widths*

Location Left Lane Width Right Lane Width Right Shoulder Width Shoulder Type

Dulguigan Rd (Ch: 0.3km) 3.5m 3.2m 2.0m Gravel / Grass

Dulguigan Rd (Ch: 1.0km) 3.4m 3.4m 1.4m Grass

Dulguigan Rd (Ch: 2.7km) 3.8m 4.2m 0.5m Grass

Dulguigan Rd (Ch: 3.0km) 2.9m 3.2m 1.0m Grass

Dulguigan Rd (Ch: 5.3km) 3.6m 3.7m 0.5m Grass

Terranora Rd (Bridge) 4.0m 4.0m 0.0m N/A - Face of Kerb

Table 5.1: Road Formation Widths

* Performance-Based Standards Scheme - Network Classification Guidelines (July 2007) Table 3 Road Class L2 for AADT 500 - 1,500 requires 3.1m Lane Width and 1.2m Shoulder Width.

No on-site measurements were taken in relation to the following:

Clearance to Overhead Cables - There are 19 locations where overhead cables cross the route. It is assumed that the clearance to overhead cables is 4.5m or greater and hence Road Class L1 is appropriate.

Clearance to Bridge - Clearance not shown on structure therefore clearance assumed to be 5m or greater.

No sight distance calculations were undertaken when assessing Ref. Item no. 2.8 - Approach visibility.

6. SITE INSPECTIONS A site inspection was undertaken by Craig Frazer and Daniel Kerwick from RoadNet on Thursday 15th November 2018. The weather was fine and clear at the time of the site inspection. The haul route was videoed using a ‘dash cam’ camera as part of this inspection and road constraints identified. ‘On foot’ inspections were undertaken at locations where road constraints were identified and measurements taken to assist in determining recommendations to mitigate the risks at these locations.

A second site inspection was undertaken by Daniel Kerwick, Daniel Gardiner and Rob Dowker on Thursday 22nd November 2018. This site inspection involved measuring the width of the road seal at locations where the edge of road seal could not be determined from aerial photography due to vegetation cover. The weather was overcast with the occasional shower at the time of this inspection. Two further site inspections were undertaken on 8th and 12th February 2019 to obtain seal width measurements required for road classification and observations of traffic behaviour to assist in assessing risk.

Heavy Vehicle Route Assessment - Dulguigan Road Tumbulgum, NSW Prepared by RoadNet Pty Ltd For Tweed Shire Council

Job Number: 18029G Page 7 of 18 Date 11/03/2019 Document Status: Draft

7. HAULAGE ROUTE

7.1 General

The haulage route (refer Figure 1.1) covered in this report commences at the access to Dulguigan Quarry (Chainage 00) and ends at the Riverside Drive / Tweed Valley Way intersection (Chainage 6100). The roads associated with this 6.1km section including 40 property accesses and the following 8 road intersections:

(i) Dulguigan Road / Palm Road intersection

(ii) Dulguigan Road / Hogans Road intersection

(iii) Dulguigan Road / Brady Place intersection

(iv) Dulguigan Road / Mayes Hill Road intersection

(v) Dulguigan Road / McAuleys Road intersection

(vi) Dulguigan Road / Terranora Road intersection

(vii) Terranora Road / Riverside Drive intersection

(viii) Riverside Drive / Tweed Valley Way intersection.

The majority of the haulage route is on Dulguigan Road, however the eastern end of the haulage route includes short sections on Terranora Road (incl. bridge over the Tweed River) and Riverside Drive (refer Figure 7.1).

Figure 7.1: Haulage Route - eastern end

The haulage route comprises a windy, rural road with heavy vegetation on either side. The road is delineated by a double barrier centreline (ie: limited sections with edge lines) and guide posts. Road drainage is catered for by grass swales or table drains (ie: no concrete kerbs).

Site inspections revealed low pedestrian movements and a low number of cyclists. Low pedestrian movements likely to be due to limited pedestrian attractions, however cyclist may be attracted to the area due to scenery and flat grade.

There were no buses on the road at the time of inspection however it is understand that there is a school bus that operates in the morning and mid after-noon.

At the following isolated locations (refer Sections 7.2 - 7.6, inclusive), vehicle swept paths (refer Appendix A: Vehicle Swept Path - 19m Semi-trailer) indicate heavy vehicles will travel in the opposing traffic lane:

North

Haulage Route

Heavy Vehicle Route Assessment - Dulguigan Road Tumbulgum, NSW Prepared by RoadNet Pty Ltd For Tweed Shire Council

Job Number: 18029G Page 8 of 18 Date 11/03/2019 Document Status: Draft

7.2 Dulguigan Quarry Access (Ch: 00)

Vehicles turning left out of Dulguigan Quarry cross to the side of the quarry access and the other side of Dulguigan Road when undertaking this manoeuvre.

Photo 7.1 Dulguigan Road - looking north-east

Photo 7.2 Dulguigan Road - looking south-west

Quarry access

Heavy Vehicle Route Assessment - Dulguigan Road Tumbulgum, NSW Prepared by RoadNet Pty Ltd For Tweed Shire Council

Job Number: 18029G Page 9 of 18 Date 11/03/2019 Document Status: Draft

7.3 Dulguigan Road / Hogans Road Intersection (Ch: 2500)

Even at slow speed vehicles are tracking onto the other side of the road when negotiating this curve.

Photo 7.3 Dulguigan Road - looking east

Photo 7.4 Hogans Road - looking south

Heavy Vehicle Route Assessment - Dulguigan Road Tumbulgum, NSW Prepared by RoadNet Pty Ltd For Tweed Shire Council

Job Number: 18029G Page 10 of 18 Date 11/03/2019 Document Status: Draft

7.4 East of Dulguigan Road / Mayes Hill Road Intersection (Ch: 3650)

Even at slow speed haulage vehicles are tracking onto the other side of the road when negotiating this curve

Photo 7.5 Dulguigan Road - looking south-west

Photo 7.6 Dulguigan Road - looking north

Heavy Vehicle Route Assessment - Dulguigan Road Tumbulgum, NSW Prepared by RoadNet Pty Ltd For Tweed Shire Council

Job Number: 18029G Page 11 of 18 Date 11/03/2019 Document Status: Draft

7.5 Dulguigan Road / Terranora Road Intersection (Ch: 5400)

Vehicles travelling on Terranora Road and turning right into Dulguigan Road will track into the opposing travel lane.

Photo 7.7 Dulguigan Road - looking north-west

Photo 7.8 Terranora Road - looking north-east

Heavy Vehicle Route Assessment - Dulguigan Road Tumbulgum, NSW Prepared by RoadNet Pty Ltd For Tweed Shire Council

Job Number: 18029G Page 12 of 18 Date 11/03/2019 Document Status: Draft

7.6 Terranora Road / Riverside Drive Intersection (Ch: 5900)

Vehicles travelling on Riverside Drive and turning right into Terranora Road cross into the opposing traffic lane. Similarly, vehicles travelling on Terranora Road and turning left into Riverside Drive will also cross into the oncoming traffic lane. There is a conflict point at this location.

Photo 7.9 Terranora Road - looking south-west

Photo 7.10 Riverside Drive - looking north-west

Heavy Vehicle Route Assessment - Dulguigan Road Tumbulgum, NSW Prepared by RoadNet Pty Ltd For Tweed Shire Council

Job Number: 18029G Page 13 of 18 Date 11/03/2019 Document Status: Draft

8. RISK ASSESSMENT

A risk assessment was undertaken on the full length of the heavy vehicle route (refer Section 1 Figure 1.1) with details shown in attached Risk Assessment spreadsheet (refer Appendix D).

The risk assessment refers to the five locations (refer Section 7.2 - 7.6, inclusive) where vehicle swept paths indicate that heavy vehicles (19m semi-trailer) will travel in the opposing traffic lane. The risk assessment also identifies general risks associated with the 5.4km section of Dulguigan Road.

The present risk levels consider the control measures that are in place. Recommendations to further mitigate risks have been provided in the Risk Assessment spreadsheet and are summarised in Section 9 below.

9. RECOMMENDATIONS

1. Dulguigan Quarry Access (Ch: 00) Risk Assessment Ref No.1 Undertake onsite trial of heavy vehicles exiting the Dulguigan Quarry to assess risk associated with traffic conflict both within the quarry access and on Dulguigan Road. Confirm quarry owners have internal protocol(s) in relation to vehicles entering and exiting the quarry and assess associated risks. Risk Assessment Ref No.2 Review the present linemarking and signage layout at the quarry entrance and undertake modifications, if required.

2. Dulguigan Road / Hogans Road Intersection (Ch: 2500) Risk Assessment Ref No.3 Install more prominent signage highlighting the advisory speed. Improve sight distance by clearing vegetation on the inside of the curve. Prepare a concept design (higher design speed) to determine intersection layout modifications required to ensure heavy vehicles remain in their travel lane when negotiating the curve and implement the works.

3. Dulguigan Road East of Mayes Hill Road Intersection (Ch: 3650) Risk Assessment Ref No.4 Prepare a concept design to determine curve modifications (including curve widening requirements) required to ensure heavy vehicles are able to remain in their travel lane when negotiating the series of curves, with sufficient width to accommodate a double barrier centreline and possibly edge lines, and implement the works. Ongoing monitoring of road conditions (refer 6 below).

4. Dulguigan Road / Terranora Road Intersection (Ch: 5400) Risk Assessment Ref No.5 Assess intersection traffic data to determine the potential for conflict between vehicles turning right from Dulguigan Road into Terranora Road and vehicles turning right from Terranora Road into Dulguigan Rd. Review linemarking layout with consideration to the position of a vehicle in Dulguigan Road waiting to turn right into Terranora Road. Implement the works.

Heavy Vehicle Route Assessment - Dulguigan Road Tumbulgum, NSW Prepared by RoadNet Pty Ltd For Tweed Shire Council

Job Number: 18029G Page 14 of 18 Date 11/03/2019 Document Status: Draft

5. Terranora Road / Riverside Drive Intersection (Ch: 5900) Risk Assessment Ref No.6 Ongoing monitoring of road condition including linemarking and signage with maintenance regime to maintain appropriate level of delineation. Prepare a concept design with the potential to realign Riverside Drive to better accommodate all traffic movements at this intersection and encourage traffic not to cross into the opposing traffic lane. Concept design to give consideration to the extension of the existing bridge safety barriers. Implement the works.

6. Dulguigan Road (Route length 5.4km) Risk Assessment Ref No.7 Ongoing monitoring of road condition (edge breaks, edge drop offs, seal defects, shoulder integrity, etc) with ‘quick response’ maintenance regime that maximises the effective seal width. Prepare and implement a road widening works program with consideration to the high priority locations identified in this report. Risk Assessment Ref No.8 Ongoing monitoring of roadside vegetation with ‘quick response’ maintenance regime (trimming, removal) that maintains sufficient clearance for maximum size vehicles using the road.

Craig Frazer

RoadNet Pty Ltd

Heavy Vehicle Route Assessment - Dulguigan Road Tumbulgum, NSW Prepared by RoadNet Pty Ltd For Tweed Shire Council

Job Number: 18029G Page 15 of 18 Date 11/03/2019 Document Status: Draft

APPENDIX A – VEHICLE SWEPT PATH (19M SEMI-TRAILER)

DULGUIGAN ROAD

Q

U

A

R

R

Y

A

C

C

E

S

S

Revision / Amendment DescriptionNo. Date

Job No.

Revision

Sheet No.

28 FEBRUARY 2019

FINAL ISSUE

Initials

1 2 3 4 5 6 7 8 9 10 11 12

A1

A

1 2 3 4 5 6 7 8 9 10 11 12

B

C

D

E

F

G

H

A

B

C

D

E

F

G

H

Plo

tte

d B

y: sa

mf P

lo

t D

ate

: 2

8/0

2/1

9 - 1

6:4

2 C

ad

F

ile

: X

:\2

01

8Jo

bs\T

we

ed

V

alle

y R

SA

s - 1

80

29

G\D

ES

IG

N\A

uto

CA

D\T

P-1

00

0.d

wg

Drawing No.

of

DesignedDrawn

Checked Checked

No.

P: 07 5525 7377

F: 07 5525 7388

E: gold.coast@roadnet.net.au

Scales

Certification

ABN 89 070 034 347

8 Sixth Avenue

Palm Beach QLD 4221

No.Engineering Certification DateSignature

18029G

02

1 10

18029G-TP-1001

D.G.

C.F.

-

-

TWEED SHIRE COUNCIL

DULGUIGAN QUARRY TO TUMBULGUM

TURNING PATH ANALYSIS

DULGUIGAN QUARRY ACCESS

01 FOR INFORMATION

02 FOR INFORMATION

19m SEMI TRAILER

20m1684

SCALE 1:200 (A1)

120

LEGEND

VEHICLE BODY EXTENTS

D

U

L

G

U

I

G

A

N

R

O

A

D

H

O

G

A

N

S

R

O

A

D

Revision / Amendment DescriptionNo. Date

Job No.

Revision

Sheet No.

28 FEBRUARY 2019

FINAL ISSUE

Initials

1 2 3 4 5 6 7 8 9 10 11 12

A1

A

1 2 3 4 5 6 7 8 9 10 11 12

B

C

D

E

F

G

H

A

B

C

D

E

F

G

H

Plo

tte

d B

y: sa

mf P

lo

t D

ate

: 2

8/0

2/1

9 - 1

6:4

3 C

ad

F

ile

: X

:\2

01

8Jo

bs\T

we

ed

V

alle

y R

SA

s - 1

80

29

G\D

ES

IG

N\A

uto

CA

D\T

P-1

00

0.d

wg

Drawing No.

of

DesignedDrawn

Checked Checked

No.

P: 07 5525 7377

F: 07 5525 7388

E: gold.coast@roadnet.net.au

Scales

Certification

ABN 89 070 034 347

8 Sixth Avenue

Palm Beach QLD 4221

No.Engineering Certification DateSignature

18029G

02

2 10

18029G-TP-1002

D.G.

C.F.

-

-

TWEED SHIRE COUNCIL

DULGUIGAN QUARRY TO TUMBULGUM

TURNING PATH ANALYSIS

DULGUIGAN ROAD AT HOGANS ROAD

01 FOR INFORMATION

02 FOR INFORMATION

19m SEMI TRAILER

20m1684

SCALE 1:200 (A1)

120

LEGEND

CONFLICT POINT.

VEHICLE BODY EXTENTS

D

U

L

G

U

I

G

A

N

R

O

A

D

ROUS RIVER

M

A

Y

E

S

H

I

L

L

R

O

A

D

Revision / Amendment DescriptionNo. Date

Job No.

Revision

Sheet No.

28 FEBRUARY 2019

FINAL ISSUE

Initials

1 2 3 4 5 6 7 8 9 10 11 12

A1

A

1 2 3 4 5 6 7 8 9 10 11 12

B

C

D

E

F

G

H

A

B

C

D

E

F

G

H

Plo

tte

d B

y: sa

mf P

lo

t D

ate

: 2

8/0

2/1

9 - 1

6:4

3 C

ad

F

ile

: X

:\2

01

8Jo

bs\T

we

ed

V

alle

y R

SA

s - 1

80

29

G\D

ES

IG

N\A

uto

CA

D\T

P-1

00

0.d

wg

Drawing No.

of

DesignedDrawn

Checked Checked

No.

P: 07 5525 7377

F: 07 5525 7388

E: gold.coast@roadnet.net.au

Scales

Certification

ABN 89 070 034 347

8 Sixth Avenue

Palm Beach QLD 4221

No.Engineering Certification DateSignature

18029G

02

3 10

18029G-TP-1003

D.G.

C.F.

-

-

TWEED SHIRE COUNCIL

DULGUIGAN QUARRY TO TUMBULGUM

TURNING PATH ANALYSIS

DULGUIGAN ROAD EAST OF MAYES HILL ROAD

01 FOR INFORMATION

02 FOR INFORMATION

19m SEMI TRAILER

20m1684

SCALE 1:200 (A1)

120

LEGEND

CONFLICT POINT.

VEHICLE BODY EXTENTS

TE

RR

AN

OR

A R

OA

D

DU

LG

UIG

AN

R

OA

D

Revision / Amendment DescriptionNo. Date

Job No.

Revision

Sheet No.

28 FEBRUARY 2019

FINAL ISSUE

Initials

1 2 3 4 5 6 7 8 9 10 11 12

A1

A

1 2 3 4 5 6 7 8 9 10 11 12

B

C

D

E

F

G

H

A

B

C

D

E

F

G

H

Plo

tte

d B

y: sa

mf P

lo

t D

ate

: 2

8/0

2/1

9 - 1

6:4

3 C

ad

F

ile

: X

:\2

01

8Jo

bs\T

we

ed

V

alle

y R

SA

s - 1

80

29

G\D

ES

IG

N\A

uto

CA

D\T

P-1

00

0.d

wg

Drawing No.

of

DesignedDrawn

Checked Checked

No.

P: 07 5525 7377

F: 07 5525 7388

E: gold.coast@roadnet.net.au

Scales

Certification

ABN 89 070 034 347

8 Sixth Avenue

Palm Beach QLD 4221

No.Engineering Certification DateSignature

18029G

02

4 10

18029G-TP-1004

D.G.

C.F.

-

-

TWEED SHIRE COUNCIL

DULGUIGAN QUARRY TO TUMBULGUM

TURNING PATH ANALYSIS

INTERSECTION OF TERRANORA ROAD AND DULGUIGAN ROAD

01 FOR INFORMATION

02 FOR INFORMATION

19m SEMI TRAILER

20m1684

SCALE 1:200 (A1)

120

LEGEND

VEHICLE BODY EXTENTS

TRACKING OVER OPPOSING LANE HOLD POINT.

TE

RR

AN

O

RA

R

O

AD

RIVERSIDE DRIVE

Revision / Amendment DescriptionNo. Date

Job No.

Revision

Sheet No.

28 FEBRUARY 2019

FINAL ISSUE

Initials

1 2 3 4 5 6 7 8 9 10 11 12

A1

A

1 2 3 4 5 6 7 8 9 10 11 12

B

C

D

E

F

G

H

A

B

C

D

E

F

G

H

Plo

tte

d B

y: sa

mf P

lo

t D

ate

: 2

8/0

2/1

9 - 1

6:4

3 C

ad

F

ile

: X

:\2

01

8Jo

bs\T

we

ed

V

alle

y R

SA

s - 1

80

29

G\D

ES

IG

N\A

uto

CA

D\T

P-1

00

0.d

wg

Drawing No.

of

DesignedDrawn

Checked Checked

No.

P: 07 5525 7377

F: 07 5525 7388

E: gold.coast@roadnet.net.au

Scales

Certification

ABN 89 070 034 347

8 Sixth Avenue

Palm Beach QLD 4221

No.Engineering Certification DateSignature

18029G

02

5 10

18029G-TP-1005

D.G.

C.F.

-

-

TWEED SHIRE COUNCIL

DULGUIGAN QUARRY TO TUMBULGUM

TURNING PATH ANALYSIS

INTERSECTION OF RIVERSIDE DRIVE AND TERRANORA ROAD

01 FOR INFORMATION

02 FOR INFORMATION

19m SEMI TRAILER

20m1684

SCALE 1:200 (A1)

120

LEGEND

CONFLICT POINT.

VEHICLE BODY EXTENTS

Heavy Vehicle Route Assessment - Dulguigan Road Tumbulgum, NSW Prepared by RoadNet Pty Ltd For Tweed Shire Council

Job Number: 18029G Page 16 of 18 Date 11/03/2019 Document Status: Draft

APPENDIX B - VEHICLE SWEPT PATH (26M B-DOUBLE)

DULGUIGAN ROAD

Q

U

A

R

R

Y

A

C

C

E

S

S

Revision / Amendment DescriptionNo. Date

Job No.

Revision

Sheet No.

28 FEBRUARY 2019

FINAL ISSUE

Initials

1 2 3 4 5 6 7 8 9 10 11 12

A1

A

1 2 3 4 5 6 7 8 9 10 11 12

B

C

D

E

F

G

H

A

B

C

D

E

F

G

H

Plo

tte

d B

y: sa

mf P

lo

t D

ate

: 2

8/0

2/1

9 - 1

7:3

9 C

ad

F

ile

: X

:\2

01

8Jo

bs\T

we

ed

V

alle

y R

SA

s - 1

80

29

G\D

ES

IG

N\A

uto

CA

D\S

up

erse

de

d\T

P-1

00

0 R

ev1

\T

P-1

00

0B

.d

wg

Drawing No.

of

DesignedDrawn

Checked Checked

No.

P: 07 5525 7377

F: 07 5525 7388

E: gold.coast@roadnet.net.au

Scales

Certification

ABN 89 070 034 347

8 Sixth Avenue

Palm Beach QLD 4221

No.Engineering Certification DateSignature

18029G

02

6 10

18029G-TP-1006

D.G.

C.F.

-

-

TWEED SHIRE COUNCIL

DULGUIGAN QUARRY TO TUMBULGUM

TURNING PATH ANALYSIS

DULGUIGAN QUARRY ACCESS

01 FOR INFORMATION

02 FOR INFORMATION

26m B-DOUBLE

20m1684

SCALE 1:200 (A1)

120

LEGEND

VEHICLE BODY EXTENTS

D

U

L

G

U

I

G

A

N

R

O

A

D

H

O

G

A

N

S

R

O

A

D

Revision / Amendment DescriptionNo. Date

Job No.

Revision

Sheet No.

28 FEBRUARY 2019

FINAL ISSUE

Initials

1 2 3 4 5 6 7 8 9 10 11 12

A1

A

1 2 3 4 5 6 7 8 9 10 11 12

B

C

D

E

F

G

H

A

B

C

D

E

F

G

H

Plo

tte

d B

y: sa

mf P

lo

t D

ate

: 2

8/0

2/1

9 - 1

7:3

9 C

ad

F

ile

: X

:\2

01

8Jo

bs\T

we

ed

V

alle

y R

SA

s - 1

80

29

G\D

ES

IG

N\A

uto

CA

D\S

up

erse

de

d\T

P-1

00

0 R

ev1

\T

P-1

00

0B

.d

wg

Drawing No.

of

DesignedDrawn

Checked Checked

No.

P: 07 5525 7377

F: 07 5525 7388

E: gold.coast@roadnet.net.au

Scales

Certification

ABN 89 070 034 347

8 Sixth Avenue

Palm Beach QLD 4221

No.Engineering Certification DateSignature

18029G

02

7 10

18029G-TP-1007

D.G.

C.F.

-

-

TWEED SHIRE COUNCIL

DULGUIGAN QUARRY TO TUMBULGUM

TURNING PATH ANALYSIS

DULGUIGAN ROAD AT HOGANS ROAD

01 FOR INFORMATION

02 FOR INFORMATION

26m B-DOUBLE

20m1684

SCALE 1:200 (A1)

120

LEGEND

TRACKING OUTSIDE OF TRAFFICABLE PAVEMENT EDGE (SPEED 20km/h)

VEHICLE BODY EXTENTS

D

U

L

G

U

I

G

A

N

R

O

A

D

ROUS RIVER

M

A

Y

E

S

H

I

L

L

R

O

A

D

Revision / Amendment DescriptionNo. Date

Job No.

Revision

Sheet No.

28 FEBRUARY 2019

FINAL ISSUE

Initials

1 2 3 4 5 6 7 8 9 10 11 12

A1

A

1 2 3 4 5 6 7 8 9 10 11 12

B

C

D

E

F

G

H

A

B

C

D

E

F

G

H

Plo

tte

d B

y: sa

mf P

lo

t D

ate

: 2

8/0

2/1

9 - 1

7:3

9 C

ad

F

ile

: X

:\2

01

8Jo

bs\T

we

ed

V

alle

y R

SA

s - 1

80

29

G\D

ES

IG

N\A

uto

CA

D\S

up

erse

de

d\T

P-1

00

0 R

ev1

\T

P-1

00

0B

.d

wg

Drawing No.

of

DesignedDrawn

Checked Checked

No.

P: 07 5525 7377

F: 07 5525 7388

E: gold.coast@roadnet.net.au

Scales

Certification

ABN 89 070 034 347

8 Sixth Avenue

Palm Beach QLD 4221

No.Engineering Certification DateSignature

18029G

02

8 10

18029G-TP-1008

D.G.

C.F.

-

-

TWEED SHIRE COUNCIL

DULGUIGAN QUARRY TO TUMBULGUM

TURNING PATH ANALYSIS

DULGUIGAN ROAD EAST OF MAYES HILL ROAD

01 FOR INFORMATION

02 FOR INFORMATION

26m B-DOUBLE

20m1684

SCALE 1:200 (A1)

120

LEGEND

CONFLICT POINT (SPEED 20km/h)

VEHICLE BODY EXTENTS

TE

RR

AN

OR

A R

OA

D

DU

LG

UIG

AN

R

OA

D

Revision / Amendment DescriptionNo. Date

Job No.

Revision

Sheet No.

28 FEBRUARY 2019

FINAL ISSUE

Initials

1 2 3 4 5 6 7 8 9 10 11 12

A1

A

1 2 3 4 5 6 7 8 9 10 11 12

B

C

D

E

F

G

H

A

B

C

D

E

F

G

H

Plo

tte

d B

y: sa

mf P

lo

t D

ate

: 2

8/0

2/1

9 - 1

7:4

0 C

ad

F

ile

: X

:\2

01

8Jo

bs\T

we

ed

V

alle

y R

SA

s - 1

80

29

G\D

ES

IG

N\A

uto

CA

D\S

up

erse

de

d\T

P-1

00

0 R

ev1

\T

P-1

00

0B

.d

wg

Drawing No.

of

DesignedDrawn

Checked Checked

No.

P: 07 5525 7377

F: 07 5525 7388

E: gold.coast@roadnet.net.au

Scales

Certification

ABN 89 070 034 347

8 Sixth Avenue

Palm Beach QLD 4221

No.Engineering Certification DateSignature

18029G

02

9 10

18029G-TP-1009

D.G.

C.F.

-

-

TWEED SHIRE COUNCIL

DULGUIGAN QUARRY TO TUMBULGUM

TURNING PATH ANALYSIS

INTERSECTION OF TERRANORA ROAD AND DULGUIGAN ROAD

01 FOR INFORMATION

02 FOR INFORMATION

26m B-DOUBLE

20m1684

SCALE 1:200 (A1)

120

LEGEND

TRACKING OVER OPPOSING LANE HOLD POINT (SPEED 20km/h)

VEHICLE BODY EXTENTS

TE

RR

AN

O

RA

R

O

AD

RIVERSIDE DRIVE

Revision / Amendment DescriptionNo. Date

Job No.

Revision

Sheet No.

28 FEBRUARY 2019

FINAL ISSUE

Initials

1 2 3 4 5 6 7 8 9 10 11 12

A1

A

1 2 3 4 5 6 7 8 9 10 11 12

B

C

D

E

F

G

H

A

B

C

D

E

F

G

H

Plo

tte

d B

y: sa

mf P

lo

t D

ate

: 2

8/0

2/1

9 - 1

7:4

0 C

ad

F

ile

: X

:\2

01

8Jo

bs\T

we

ed

V

alle

y R

SA

s - 1

80

29

G\D

ES

IG

N\A

uto

CA

D\S

up

erse

de

d\T

P-1

00

0 R

ev1

\T

P-1

00

0B

.d

wg

Drawing No.

of

DesignedDrawn

Checked Checked

No.

P: 07 5525 7377

F: 07 5525 7388

E: gold.coast@roadnet.net.au

Scales

Certification

ABN 89 070 034 347

8 Sixth Avenue

Palm Beach QLD 4221

No.Engineering Certification DateSignature

18029G

02

10 10

18029G-TP-1010

D.G.

C.F.

-

-

TWEED SHIRE COUNCIL

DULGUIGAN QUARRY TO TUMBULGUM

TURNING PATH ANALYSIS

INTERSECTION OF RIVERSIDE DRIVE AND TERRANORA ROAD

01 FOR INFORMATION

02 FOR INFORMATION

26m B-DOUBLE

20m1684

SCALE 1:200 (A1)

120

LEGEND

CONFLICT POINT (SPEED 20km/h)

VEHICLE BODY EXTENTS

Heavy Vehicle Route Assessment - Dulguigan Road Tumbulgum, NSW Prepared by RoadNet Pty Ltd For Tweed Shire Council

Job Number: 18029G Page 17 of 18 Date 11/03/2019 Document Status: Draft

APPENDIX C - ROAD CLASSIFICATION

PBS Scheme - Network Classification Guidelines

Page 1 of 2

APPENDIX D – SAMPLE FORM FOR ROAD CLASSIFICATION Road name: Dulguigan Road

References: Onsite inspection and limited measurements

Ref. item no.

Road performance measures Assign road access class

Comments

Description Performance levels

Physical and operational considerations L1 L2 L3 L4

0 Road widths - Minimum lane and shoulder

width for sealed rural roads - Minimum carriageway width for

unsealed roads - Minimum bridge width on rural

roads - Minimum lane width for

urban/township roads - Minimum lane width for

horizontal curves

Table 3 Table 4 Table 6 Table 2 Table 5

X

Refer Sec. 5 Table 5.1.

2.3 Overtaking provision

- Minimum establishment sight distance

- Maximum distance between overtaking opportunities

- Overtaking lanes

- Relationship between overtaking difficulty at specified Level of Service and effects due to extent of overtaking lane, sight distance profile and opposing traffic

Table 8

Table 9

L1, L2 -1 km

L3, L4 -1.25 km

L1 - Fig. 4

L2 - Fig. 5

L3 - Fig. 6

L4 - Fig. 7

Not Applicable

0 Low speed offtracking and intersection requirement

Intersection geometric requirements to be determined by each representative Scheme vehicle class and swept path software

X

Vehicle swept paths indicate 19m semi-trailer will cross into the opposing traffic lanes at isolated locations.

2.5

2.6

Signalised intersection and railway crossings

- Minimum green plus intergreen time

- Stacking distances at

Table 12

Tables 12 & 13

Table 13

Not Applicable

PBS Scheme - Network Classification Guidelines

Page 2 of 2

intersections and railway level crossings

- Warning time at railway level crossings

2.7 Entry length onto highways

- Entry lengths a function of grade and main road operating speed

Table 14

Not Applicable

2.8 Approach visibility

- Minimum sight distance as a function of grade and operating speed

Table 15

X

Refer Sec. 5 - No sight distance calculations performed. On-site observations indicate limited sight distance based on operating traffic speeds.

2.9 Vertical clearance

- Minimum overhead clearance

L1 - 4.5 m

L2 - 4.8 m

L3 - 4.8 m

L4 - 4.8 m

X

Refer Sec. 5 - No clearance measurements taken. On-site observations indicate sufficient clearance to overhead cables and structure.

2.10 Off-road parking

- Maximum spacing

- Clearance from edge of pavement as a function of speed

L1 – 80 km

L2 – 80 km

L3 – 80 km

L4 – 120 km

Table 18

Not Applicable

2.11 Roadside infrastructure

- Widths of entry and exit lanes and radius of curvature to minimise damages to roadside furniture

(same requirements as low speed offtracking)

Not Applicable

Heavy Vehicle Route Assessment - Dulguigan Road Tumbulgum, NSW Prepared by RoadNet Pty Ltd For Tweed Shire Council

Job Number: 18029G Page 18 of 18 Date 11/03/2019 Document Status: Draft

APPENDIX D - RISK ASSESSEMENT

RISK ASSESSMENT - Dulguigan Road Heavy Vehicle Route Assessment Project: 18029G Tweed Shire Council - Heavy Vehicle Route Assessment

Client: Tweed Shire Council (TSC)

Reference: Vehicle Swept Paths Analysis and On-site Observations undertaken Friday 8th and Tuesday 12th February 2019 Revision: 11th March 2019

Wide access at Dulguigan Quarry provides an area

for heavy vehicles to use when exiting the quarry

and turning left onto Dulguigan Road.

Undertake trial in conjunction with quarry owners to

assess actual vehicle swept path for the longest heavy

vehicle utilised at the quarry to determine if heavy vehicle

cross into the opposing lanes (turn lane, through lane)

when exiting the quarry and turning left onto Dulguigan

Road.

Reasonable sight distance for drivers of heavy

vehicles when exiting the quarry and turning left

onto Dulguigan Road, and for motorists travelling

westbound on Dulguigan Road. Dulguigan Road

widening on southern side provides a travel path

for westbound traffic if an evasive manoeuvre is

required.

Confirm quarry operators have internal protocol(s) in

relation to heavy / light vehicles entering and exiting the

quarry to prevent the risk of heavy vehicle exiting the

quarry striking heavy / light vehicle in Dulguigan Road that

is stopped to turn right into quarry, or striking westbound

traffic on Dulguigan Road.

Combined "Trucks Entering" and "50m" sign

installed prior to Dulguigan Quarry access.

Dulguigan Road has been widened at this location

to allow westbound traffic to pass heavy vehicles

stopped to turn right into the Dulguigan Quarry

access.

Combined symbolic "right curve" sign and

"65km/h" advisory speed sign followed by

combined "Turning Traffic" and "100m" sign

installed prior to Dulguigan Quarry access.

Linemarking denoting right turn movement into

Dulguigan Quarry provided.

Combined symbolic "curve and side road" sign and

"25km/h" speed advisory sign installed in

Dulguigan Road on both approaches to the curve

at Hogans Road. Note: The speed environment on

both approaches to the curve at Hogans Road

makes it unlikely that motorists will adopt the

advisory speed of 25km/hr when negotiating the

curve.

Install more prominent signage highlighting the advisory

speed.

Remove vegetation to provide additional sight distance

around the curve. (Note: This action may result in vehicles

travelling at higher speeds around the curve and thus

increase the likelihood of vehicles travelling in the

opposing travel lane.)

Redesign curve and intersection layout to higher design

speed and implement works.

2 Heavy vehicles travelling westbound on

Dulguigan Road and turning right into

Dulguigan Quarry

Heavy vehicles stopped in westbound lane on

Dulguigan Road waiting to turn right may result in

rear end collisions.

Vehicle damage and

injury

Occasional Minor LowMinorImprobable

TSC Design Representative

Serious

Review the present linemarking and signage layout at the

quarry access, and implement modifications, if required.

Improbable Medium

3 Heavy vehicle travelling eastbound or

westbound on Dulguigan Road

HighSerious

Action by Whom

High

Ref

No.Risk

1

Occasional

Vehicle damage and

injury

Medium

Reasonable sight distance for 25km/h advisory

speed.

Heavy vehicles exiting Dulguigan Quarry and

turning left (eastbound) onto Dulguigan Road

Dulguigan Quarry Access (Ch: 00) - Swept path analysis (Drawing No. 18029G-TP-1001 Rev 02) and on-site observations undertaken to assess risk associated with heavy vehicles exiting Dulguigan Quarry and turning left onto Dulguigan Road, and heavy vehicles travelling on Dulguigan Road and turning right to enter Dulguigan Quarry. Swept path analysis indicates 'almost certain'

that 19m heavy vehicles will cross into opposing lane when exiting the quarry and turning left onto Dulguigan Road. No trucks exited the quarry at the time of on-site observation. Markings on the road surface indicate that vehicles utilise the opposing lane however these markings may relate the heavy vehicles entering and not exiting the quarry.

Frequency

Improbable Serious

Dulguigan Road / Hogans Road Intersection (Ch 2500) - Vehicle swept paths (Drawing No. 18029G-TP-1002 Rev 02) and on-site observation showed the travel path for a number of heavy and light vehicles travelling eastbound on Dulguigan Road was close to the road centreline or partly within the opposing travel lane when negotiating the curve. Observed travel speeds appeared

to exceed the posted 25km/h advisory speed. Driver behaviour altered with high level of compliance (ie: remaining in travel lane) when other vehicles were present.

Risk Level Frequency Severity Risk Level

Occasional Serious

TSC Representative / Quarry Owner

Specific Activity Severity Control measures Recommended ActionsHazard

Medium

TSC Design Representative / TSC

Maintenance Representative

Heavy vehicles entering opposing traffic lane

resulting in potential for head-on vehicle collision.

Heavy vehicles entering opposing traffic lane

resulting in potential for head-on vehicle collision.

Vehicle damage and

injury

Page 1 of 2

Combined symbolic "Windy Road" and "45km/h"

speed advisory sign installed on both approaches

to a series of bends in the vicinity of Mayes Hill

Road. CAMs also provided to assist in delineating

this series of bends.

Review road geometry and the potential to widen seal

width sufficiently (including curve widening requirements)

to accommodate a double barrier centreline and possibly

edge lines through this series of bends, and implement

works.

Ongoing monitoring of road pavement condition

and the undertaking of pavement repairs when

required.

Continue monitoring of road condition (edge breaks, edge

drop offs, seal defects, shoulder integrity, etc) with

maintenace regime to maintain maximum effective seal

width.

5 Heavy vehicle turning right form Terranora

Road into Dulguigan Road

Heavy vehicle striking vehicle waiting to turn right

from Dulguigan Road into Terranora Road.

Vehicle damage and

injury Improbable Minor Low

Very good sight distance on all approaches to the

intersection. Standard linemarking and signage

provided.

Review linemarking layout at intersection with

consideration to the position of a vehicle in Dulguigan

Road waiting to turn right into Terranora Road.

TSC Design Representative

Improbable Minor Low

Reasonable sight distance on 2 of the 3

approached to the intersection with poor sight

distance on Terranora Road approach. Combined

symbolic "Intersection" sign and "Reduce Speed"

sign installed on Terranora Road prior to the

intersection.

Continue monitoring of road condition including

linemarking and signage with maintenace regime to

maintain appropriate level of delineation.

Ongoing monitoring of linemarking, signage and

pavment and the undertaking of repairs or

replacement when required.

Review intersection geometry and the potential to realign

Riverside Drive to better accommodate all traffic

movements. Implement works.

Ongoing monitoring of road pavement condition

and the undertaking of pavement repairs when

required.

Continue monitoring of road condition (edge breaks, edge

drop offs, seal defects, shoulder integrity, etc) with 'quick

response' maintenace regime to maintain maximum

effective seal width.

Signage such at "60 Truck Speed Limit", symbolic

"Road Narrows" signs and "Advisory Speed" signs

used to control heavy vehicle speeds and advise

drivers of narrow road seal width.

Prepare and implement a road widening works program

with consideration to the high priority locations identified

in this risk assessment. Implement works.

8 Heavy vehicles travelling eastbound and

westbound on Dulguigan Road

Vegetation extending into roadway may result in

heavy vehicles crossing the road centreline and

entering the opposing travel lane, resulting in the

possibility of head-on collisions.

Vehicle damage and

injuryImprobable Serious Medium

Ongoing monitoring of vegetation and the

undertaking of vegetation maintenance when

required.

Continue monitoring of vegetation with 'quick response'

maintenance regime (trimming, removal) that maintains

sufficient clearance for maximum size, heavy vehicles

using the road.

Improbable Serious Medium

NOTE: 1. The above Risk Assessment is based on general access (Level 1) 19m semi-trailer. Based on a review of swept paths associated with (Level 2) 26m B-double the risk of a high number of these heavy vehicles is deemed not acceptable unless road modifications (horizontal geometry, road widening) are implemented.

2. Pedestrians, cyclists and bus operations are excluded from the above Risk Assessment.

Serious High

4 Heavy vehicle travelling eastbound or

westbound on Dulguigan Road

Occasional Minor

High

MediumSeriousImprobable

TSC Infrastructure Delivery

Representative / TSC Maintenance

Representative

Dulguigan Road / Terranora Road Intersection (Ch: 5400) - Vehicle swept paths (Drawing No. 18029G-TP-1004 Rev 02) and on-site observation showed a high percentage of heavy and light vehicles northbound on Terranora Road and turning right into Dulguigan Road were crossing into the opposing travel lane when negotiating the right turn manoeuvre. Driver behaviour altered

with high level of compliance when other vehicles were present.

MediumSeriousImprobable

TSC Design Representative / TSC

Maintenance Representative

Dulguigan Road (Route Length 5.4km) - On-site observations and measurements reveal narrow seal width for road with reasonably high number of heavy vehicles, and isolated pavement failures on outer edge of seal.

Minor Low

Heavy vehicle entering opposing traffic lane

resulting in head-on vehicle collision.

Vehicle damage and

injury

Occasional Serious

Terranora Road / Riverside Drive Intersection (Ch: 5900) - Vehicle swept paths (Drawing No. 18029G-TP-1005 Rev 02) and on-site observation showed a high percentage of heavy and light vehicles travelling on Riverside Drive and turning right into Terranora Road were crossing into the opposing travel lane when undertaking the right turn manoeuvre. Driver behaviour altered and

high level of compliance when other vehicles were present.

Improbable

7 Heavy vehicles travelling eastbound and

westbound on Dulguigan Road

Narrow seal width may result in heavy vehicles

crossing the road centreline or leaving the sealed

road surface, resulting in the possibility of head-on

or 'off road' collisions.

Vehicle damage and

injury

Occasional

Dulguigan Road east of Mayes Hill Road (Ch: 3650) - Vehicle swept paths (Drawing No. 18029G-TP-1003 Rev 02) and on-site observation showed the travel path for heavy vehicles travelling westbound on Dulguigan Road was close to the road centreline or partly within the opposing traffic lane when negotiating the series of curves.

Based on Risk Assessment from Austroads: Guide to Road Safety Part 6: Road Safety Audit - Section 4.8

TSC Infrastructure Delivery

Representative / TSC Maintenance

Representative

6 Heavy vehicle turning right form Riverside

Drive into Terranora Road

Heavy vehicle striking vehicle waiting to turn right

from Terranora Road into Riverside Drive.

Vehicle damage and

injury

Medium

Page 2 of 2